wrote:
Do they work through glass? I would like to find a unit that will
allow me to check temperatures in vacant stores through the
storefront.

http://shop.vendio.com/BROADSTONEPRO.../?s=1231846607

Like this.

Thanks!

Peter Wieck
Melrose Park, PA

Based on the other answers, I think the best bet would be to get a
baseline--normal temp--and from there just look for a rise. IOW, it
might not measure actual temperature accurately, but the the consensus
seems to be that various types of glass will pass 'some' IR; so it might
be good enough to indicate a change. As long as you know what it
'should' read, you can tell if it's above normal.

Of course it will take some experimenting.

jak